Well roeman, kind of a ridiculous statement you have made. You've obviously spent some time on the water so I'm sure you've encountered situations like this. Like most fishing situations, fish will act differently when being handled. Many factors could attribute to this and those who spend any amount of time handling these fish know that each fish can and will act differently. No different than a salmon or steelhead. Some are calm and can be manipulated easily, others not so much.
As for the removal of slime, you've already justified my point, three guys holding a fish and handling it appropriately will definitely remove slime. But when done correctly, no harm done. The OPTICS, as i mentioned, of people struggling with a fish on a rope is not good, does it remove slime as well... yes. As i stated before, we know the fish can handle it, its about keeping this simple. If someone cannot figure out how to effectively manage a large sturgeon at the shore without using a rope, they should really be evaluating why they took the fish to the shore in the first place.
As for "not talking about protecting sturgeon, just keeping it open until there is no more fishery", you really need to educate yourself before you you make an outlandish comment of this nature. Those like myself, my co workers and other volunteers, have spent thousands of hours fishing sturgeon, tagging every fish we catch to gather critical knowledge on this particular fish. I've been involved with the Fraser River Sturgeon Conservation Society for many years . if anyone knows how important this resource is, it would be someone who spends as much time utilising it as we do.
I invite you and everyone else to educate themselves a bit further by checking our the Fraser River Sturgeon Conservation Societies website. Tonnes of info and if you really want to help, donate some cash.........but I'm sure you've already done that right!